142323479 has 2 divisors, whose sum is σ = 142323480. Its totient is φ = 142323478.

The previous prime is 142323469. The next prime is 142323481. The reversal of 142323479 is 974323241.

It is a strong prime.

It is an emirp because it is prime and its reverse (974323241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142323479 is a prime.

Together with 142323481, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142323469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71161739 + 71161740.

It is an arithmetic number, because the mean of its divisors is an integer number (71161740).

Almost surely, 2^142323479 is an apocalyptic number.

142323479 is a deficient number, since it is larger than the sum of its proper divisors (1).

142323479 is an equidigital number, since it uses as much as digits as its factorization.

142323479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 35.

The square root of 142323479 is about 11929.9404441095. The cubic root of 142323479 is about 522.1061999197.

The spelling of 142323479 in words is "one hundred forty-two million, three hundred twenty-three thousand, four hundred seventy-nine".